24 questions asked across 11 exam years, newest first
Given below in the the left column are different modes of communication using the kinds of waves given the right column. | A | Optical Fibre communication | P | Ultrasound | |---|---|---|---| | B | Radar | Q | Infrared Light | | C | Sonar | R | Microwaves | | D | Mobile Phones | S | Radio Waves |
Answer: B